Answer Posted / faiyaz ahmad
Control valve is final control element and control valve is device which is used to control the flow pressure temperature and liquid level fully and partially.
the working principle of control valve is Force and Balancing Flapper Nozel Air to open and air to close.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What is the formula of vabration sesore. i mean how to covert mils to volt plz share if any body knows very argent : my mai is merajalam143545@yahoo.com
We are using Rosemount 5400 series Radar Level Transmitters in all types of Sump Applications having oily water hdrocarbon petrochemical nature. What we are facing the problem frequently is that always getting reading frezzed at some value. If we do power recycling , sometimes it is working . then making same freezing problem. If anybody faced before such type of problem and also having solution , Please give the answer.
What are different types of orifice plates?
Linear amplifier.
plz tell me clearly about PID.."when v have to change I value,D value,GAIN??
please can any one tell me clearly about pid tuning i am confusing about this .how to tune pid easly?
What is heating effect?
line up procedure for dp type flow transmitter?
how the arrangement of equipments done in control room
State bernoulli’s application.
can any one tell me when ongc placement test and its forms is available????/ pls tell me if u know
why we are not using the turbine flow meter in the steam service?
Calibration procedure for electro magnetic flow meter
What is difference between radial vibration and axial vibration explain in detail .
What is the purpose of the analyzer in petrochemical plant?